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Volsung Help & Support

Volsung 2026.1

Volsung 2026.1 adds support for modelling coaxial geothermal wells and updates how 3D visualisation controls are accessed and simulation outputs are configured. This release also includes a licensing change and requires Bentley account authentication.

Key highlights:

  • Model coaxial geothermal wells, with thermal conductivity varying along the wellbore to support Advanced Geothermal System (AGS) approaches.
  • Review results using the Viewer Settings panel including contours, thresholds, and vectors.
  • Configure simulation outputs using the Output Controls dialog, providing centralised control over output settings.
  • Use additional modelling and visualisation options, including a spider web grid and 3D water‑table display.

Access Volsung with a Bentley account using Bentley Connection Client on Windows or browser-based sign-in on Linux, learn more.

View the full Volsung 2026.1 release notes.

Getting started

Get setup with your Volsung or Gudrun license, download example projects and watch tutorials.

Read more

Download example projects

Get started by downloading a generic wellbore system or a project that uses a Leapfrog model as the input for the numerical model.

Read more

Watch tutorials

Explore tutorials to get started on creating simple 2D and 3D reservoir models, or gain an understanding of well performance.

Tutorials

Read research papers

Access research papers on geothermal modelling with Volsung.

Research Volsung

System requirements

Learn about the computer specifications needed to run Volsung.

System requirements

Supported data/formats

Learn about the data types and formats compatible with Volsung.

Data types/formats

Open source library

Some of the libraries which Volsung is built on require us to make their source code available to users, for example under an LGPL license. Most users will never require these files. Use the links below to download the source code of the libraries:
Please contact us if you wish to alter libraries according to their respective license conditions and we will support you in your efforts.

Linux

Linux (Ubuntu and its Derivative Distros)

Note: If you’re new to Linux and want to try out Volsung’s exceptional NVIDIA GPU acceleration we recommend you try out the Linux Mint distribution with the Cinnamon window manager. You can test run Linux by installing the system on a second hard drive using dual boot or you can even run it on a large USB flash drive. The license files which we distribute will work under both Windows and Linux.

For the installation first ensure that your package repositories are up-to-date:

  • sudo apt update
  • sudo apt upgrade
  • sudo apt install libxcb-xinerama0 dbus-x11

If you plan to use GPU accelerated computing please correctly install your NVIDIA GPU first and ensure that the correct NVIDIA driver is installed on your system. If you install a GPU later on you may need to reinstall Volsung.

Next run the downloaded installer binary from the command line:

  • chmod +x ./volsung-online-installer
  • sudo ./volsung-online-installer

Note if you do not have all required system packages installed then a terminal will pop up to install these missing packages.

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